2938318217 has 2 divisors, whose sum is σ = 2938318218. Its totient is φ = 2938318216.

The previous prime is 2938318189. The next prime is 2938318249. The reversal of 2938318217 is 7128138392.

2938318217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2909631481 + 28686736 = 53941^2 + 5356^2 .

It is a cyclic number.

It is not a de Polignac number, because 2938318217 - 2⁶ = 2938318153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2938318297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469159108 + 1469159109.

It is an arithmetic number, because the mean of its divisors is an integer number (1469159109).

Almost surely, 2^2938318217 is an apocalyptic number.

It is an amenable number.

2938318217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2938318217 is an equidigital number, since it uses as much as digits as its factorization.

2938318217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 2938318217 is about 54206.2562533145. The cubic root of 2938318217 is about 1432.2965392003.

The spelling of 2938318217 in words is "two billion, nine hundred thirty-eight million, three hundred eighteen thousand, two hundred seventeen".